Is this - a) the Aurora Borealis or b) Paricutin?
This is the Aurora Borealis.
Is this - a) Victoria Falls or b) the Great Barrier Reef?
This is the Great Barrier Reef.
Can you find coral in the Great Barrier Reef?
Yes, you can.
Mount Everest is the tallest what?
Mount Everest is the tallest mountain in the world.
How many natural wonders of the world are there?
There are seven.
Is this - a) the Grand Canyon or b) Mount Everest?
This is Mount Everest.